When it comes to reconditioning your rods, you simply can not purchase a better rod bolt. ARP, a quality name that almost all professional engine builders rely on. These ARP rod bolts feature a tensile strength of 200,000 and are 5 times more reliable than factory rod bolts. This application is for the Oldsmobile 350 engines from 1968 to 1979. This application also fits the 403 Oldsmobile engines.